Custom WndProc Handlers in WPF • Oleksii Holub
admin WndProc is a callback function that takes care of system messages sent from the operating system. Unlike WinForms, in WPF, it’s not directly exposed to you as it’s hidden beneath…
Reverse-Engineering YouTube • Oleksii Holub
Almost a year ago, I started developing YoutubeExplode, a library that scrapes information on YouTube videos and lets you download them. Originally, my main motivation for developing it was simply…
Creative Use of Extension Methods in C# • Oleksii Holub
I’m sure that everyone with at least some background in C# is aware of extension methods — a nice feature that lets developers extend existing types with new methods. This…
Monadic Parser Combinators in C# • Oleksii Holub
So if we can’t use regular expressions to build these syntax trees, what should we do? Parser combinators There are many approaches for writing parsers for context-free languages. Most language…
Parsing in F# with FParsec • Oleksii Holub
Two months ago I wrote an article about Monadic Parser Combinators in C# and how you can use this approach to express complex recursive grammar. To extend this topic a…
Working with Expression Trees in C# • Oleksii Holub
Expression trees is an obscure, although very interesting feature in .NET. Most people probably think of it as something synonymous with object-relational mapping frameworks, but despite being its most common…
Simulating Target-Type Inference in C# • Oleksii Holub
Above everything else in software development, I really enjoy building frameworks that enable other developers to create something cool. Sometimes, when chasing that perfect design I have in mind, I…
Unit Testing is Overrated • Oleksii Holub
The importance of testing in modern software development is really hard to overstate. Delivering a successful product is not something you do once and forget about, but is rather a…
Pure-Impure Segregation Principle • Oleksii Holub
Two months ago I published an article detailing why I think that Unit Testing is Overrated, which seemed to resonate quite a lot with readers, prompting very involved and interesting…
Prefer Fakes Over Mocks • Oleksii Holub
The primary purpose of software testing is to detect any potential defects in a program before it reaches its intended consumers. This is typically achieved by establishing functional requirements which…